/Engine/Source/Runtime/MovieScene/Public/EntitySystem/MovieSceneEntityLedger.h
To be called any time this ledger's instance is to be evaluated with a different set of entities - updates the set of entities that are required for the current evaluation environment
void UpdateEntities ( [UMovieSceneEntitySystemLinker](API\Runtime\MovieScene\EntitySystem\UMovieSceneEntitySystemLinker) * Linker, const [FEntityImportSequenceParams](API\Runtime\MovieScene\EntitySystem\FEntityImportSequenceParams) & ImportParams, const [FMovieSceneEntityComponentField](API\Runtime\MovieScene\Evaluation\FMovieSceneEntityComponentField) * EntityField, const FMovieSceneEvaluationFieldEntitySet & NewEntities )